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Manemergus anguirostris
Taxonomy
Manemergus anguirostris was named by Buchy et al. (2005). Its type specimen is SMNK-PAL 3861, a partial skeleton (skeleton lacking both forelimbs, both hindlimbs except for the left femur and some phalanges, parts of both girdles, and the terminal caudal vertebrae (includes), and it is a 3D body fossil. Its type locality is North of Goulmima (Unit 4), which is in a Turonian open shallow subtidal limestone in the Akrabou Formation of Morocco. It is the type species of Manemergus.
Synonymy list
| Year | Name and author |
|---|---|
| 2005 | Manemergus anguirostris Buchy et al. pp. 101-111 figs. 1-3, 5-9 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Manemergus anguirostris Buchy et al. 2005
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. -C. Buchy et al. 2005 | A polycotylid plesiosaurs differing from all other polycotylid taxa in the following combination of features: the rostrum represents about 55% of skull length. The rostrum is hemicylindrical over its rostral half. The postorbital segment is subrectangular in dorsal view. The temporal bar is as high as the orbit. The suspensorium is vertical. The squamosal forms a dorsal shelf overhanging the atlas and axis. A paired frontal foramen is present and lies level with the rostral margin of the orbits. It is bordered laterally by the prefrontal. The facial process of the premaxilla regularly tapers caudally, contacting the parietal level with the caudal margin of the external naris. The teeth are unifrom in size and slender (the estimated ratio of the crown to its basal diameter is 5), smooth except for a possible faint rostral carina (the tooth shape may be a juvenile feature). The tooth formula is: 5 premaxillary, 10 maxillary, 15 dentary teeth inclding 9 symphysial teeth. There are 25 cervical, 3 pectoral, and about 1 dorsal vertebrae. In its cranial portion, the interclavicle is expanded laterally, possessing wings that contact the clavicle. The interclavicle is restricted caudally to a rod-like median process. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Early/Lower Turonian or 93.90000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Turonian | Morocco (Er-Rachidia) | Manemergus anguirostris (type locality: 103973) |